Take a road trip in an electric car, and you know the juicing up routine. You pull off the highway, park at a charging station, plug in the car … and wait. If you’re lucky, it’s about half an hour. Sometimes, it’s longer.In China, one company can get you back on the road in minutes. I had the opportunity to see how, with Jason Wu, an executive at NIO Power, an EV maker.A few weeks ago, I sat in a roomy SUV, while Wu, in the driver’s seat, spoke …